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Verizon Jetpack MiFi 6620L External Antenna Kit comes with a Cellular Antenna and an External Antenna Adapter. The antenna is a magnetic mount with 5dbi gain and has 10ft of cable.
Improve the reception of your cellular data card by adding an external antenna. An external antenna will boost the cellular signal for faster internet speeds.
Verizon Jetpack MiFi 6620L, Sierra Wireless AC500, AC504, USB 301, USB 302, USB 305 (AT&T Lightning), USB306, USB 307, USB 308 (AT&T Shockwave), USB 309
Novatel MiFi 6620L, C777, MC760, PC770, USB1000
ZTE MF633BP+, MF668+, MF633+
* WARNING - PLEASE READ - To purchase this product, you must read this notice and agree to buy and use this product at your risk. Although it's rare, using this external antenna adapter can damage your device and void its warranty. When an external antenna adapter is inserted into the port on your mobile device, your device's antenna is disconnected so that your device can receive a signal through an external antenna. When you remove the adapter, your device's antenna should reconnect. If it does not, your device will show a weak or no signal and no service. No signal could indicate that the switch that connects and reconnects the adapter is damaged or stuck. Despite the adapter manufacturer's testing, some devices may have weak ports and be damaged using this product. Damage may also be caused by pushing adapters in too far, twisting the connector when inserting or removing and by pulling on the adapter cable.
As an alternative, we offer Building Signal Booster Systems and Vehicle Signal Booster Systems. These systems that do not require a connection to your device. These boosters will perform better than just an antenna directly connected to your device without the risk of plugging in an antenna adapter.
I picked one of these antenna kits up for my verizon mifi unit. I didnt see much performance or signal gain in metro areas, but I wasn't worried about the signal strength in Phoenix, it's always been just fine. But when I drive into the rural areas of Northern Arizona the signal strength is a bit better but not what I was hoping for. 5 dB gain should have given me the extra power I needed but I at best saw 1 to 2db of gain. Nick on 26th Feb 2016